A 10-year-old Aurora boy is clinging to life after his family's three pit bulls mauled him Wednesday afternoon as he was trying to get into his home. Greg Jones Jr. was attacked in his back yard in the 16600 block of East Asbury Avenue, near Naples Court. He was rushed to Children's Hospital in Denver, where he remains in critical condition. He was bitten on his head, face, throat, arms and legs. Neighbors who fought away the dogs said one dog even appeared to be gnawing on the boy's neck. Neighbors say the fourth grader returned home from school just...